Java/lab_1/lab_1.java

@@ -2,16 +2,19 @@ import java.util.Scanner;
 
 public class lab_1 {
     
-    public static int protectedInput(String variableToRead, Scanner input) {
+    public static int protectedInput(String variable_to_read, Scanner input) {
+        int read_variable;
         do {
             try {
-                System.out.printf("Enter %s: ", variableToRead);
+                System.out.printf("Enter %s: ", variable_to_read);
-                return input.nextInt();
+                read_variable = input.nextInt();
+                break;
             } catch (Exception e) {
-                System.out.printf("%s must be an integer.\n", variableToRead.toUpperCase());
+                System.out.printf("%s must be an integer.\n", variable_to_read.toUpperCase());
                 input.nextLine();
             }
         } while (true);
+        return read_variable;
     }
 
     public static void main(String[] args) {
@@ -24,7 +27,7 @@ public class lab_1 {
 
         input.close();
 
-        final float s = ((float) (b + m) / 2) * (m - b + 1) * (n - a + 1);
+        float s = ((float) (b + m) / 2) * (m - b + 1) * (n - a + 1);
 
         System.out.println("S = " + s);
     }

Java/lab_1/lab_1.kt

@@ -1,21 +0,0 @@
-fun protectedInput(variableName: String): Int {
-    do {
-        try {
-            print("Enter $variableName: ")
-            return readln().toInt()
-        } catch (e: Exception) {
-            println("${variableName.uppercase()} must be an integer!")
-        }
-    } while (true)
-}
-
-fun main() {
-    val n: Int = protectedInput("n")
-    val m: Int = protectedInput("m")
-    val a: Int = protectedInput("a")
-    val b: Int = protectedInput("b")
-
-    val s: Float = (b + m).toFloat() / 2 * (m - b + 1) * (n - a + 1)
-
-    println("S = $s")
-}